In this paper, the authors proposes a voice codification based on two algorithms that make the wave form codification in time domain. The first uses the Significant Impulse Model (SIM), which has as a goal to operate as an endpoint detector and as a dawn sampling, through the detection and selection of the significant valleys and crests; the second algorithm, is a Redundant Wave-form Recycler (RWR) that uses an architecture based on fuzzy logic with an accumulative memory.